Two. The 15km transmission distance can only be attained beneath the FCC normal when calculated in an outdoor setting without having interference. The SRRC standard is adopted in mainland China, as well as the furthest transmission length is 8 km. Mavic 3M with RTK module for centimeter-amount positioning. Flight Regulate, https://m3mhomes.com/residential/m3m-skywalk-sector-74-gurgaon/